Oral isotretinoin is the best treatment for patients with moderate acne in whom antibiotics are unsuccessful and for those with severe inflammatory acne. Dosage of isotretinoin is usually 1 mg/kg once/day for 16 to 20 wk, but the dosage may be increased to 2 mg/kg once/day.
Lots of different predators will prey upon other predators: Golden eagles are well known predators of smaller hawks. Collared lizards will eat other lizards. Crocodilians will feed on other predators, such as monitor lizards, snakes and even lions that come to the water to drink. Many snakes will eat other snakes. Some frogs, like the horned frogs of South America and the African bullfrog, readily feed on other frogs.
Most carnivores in the food chain are called predators. A predator is an animal that hunts for and kills other animals for food. The animals that predators hunt are called prey. There are many different kinds of carnivores from small spiders that catch and eat flies, to lions that hunt and kill their food.he forest has many different animals some that eat meat and others that eat only plants. Some of the meats eating carnivorous animals in the forest are owls, wolves, lynx, and the weasel. The wolf eats many larger herbivores in the forest whereas the weasel feeds in small animals like mice.